Sliver Overlord [Secret Lair Drop Series] Monk you may change "swampwalk" to

you may change "swampwalk" to "plainswalk

Set: Ikoria: Lair of Behemoths Type: Legendary Creature — Cat Nightmare Beast Rarity: Mythic Cost: {2}{W}{B}{G} Mutate {4}{G/W}{B}{B} (If you cast this spell for its mutate cost

Set: March of the Machine Type: Enchantment Rarity: Uncommon Cost: {1}{B} When Gift of Compleation enters the battlefield

Set: Streets of New Capenna Type: Instant Rarity: Uncommon Cost: {3}{U} This spell costs {2} less to cast if it targets a green permanent

Sliver Overlord [Secret Lair Drop Series] Monk you may change "swampwalk" toSet: Secret Lair Drop Series Type: Legendary Creature Sliver Mutant Rarity: Mythic Cost: {W}{U}{B}{R}{G} {3}: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle. {3}: Gain control of target Sliver. (This effect lasts indefinitely.) The end of evolution.